Backlight module
A backlight module, light source technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of reduced production efficiency, difficult positioning, labor and labor consumption, etc.
Inactive Publication Date: 2008-04-30
CORETRONIC
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Problems solved by technology
[0002] see figure 1 , the existing method for fixing the diffuser 11 in the backlight module is to set a circular hole 12 on the diffuser 11, and to set a columnar body (not shown) on the housing (not shown) of the backlight module, through the circular hole 12 Set on the columnar body to fix the diffuser 11 on the housing; however, the circular hole 12 on the diffuser 11 is formed by cutting the diffuser 11, and the cut circular waste is easy to scratch if it falls off directly Diffusion sheet 11, resulting in poor optical properties of the diffusion sheet 11; however, if the waste debris does not fall off directly, it is necessary to manually remove the waste debris from the diffusion sheet 11, which consumes manpower and man-hours and reduces production efficiency
[0003] see figure 2 , there is another way to fix the diffusion sheet 11' in the backlight module, which is to set a semicircular gap 13 on both sides of the diffusion sheet 11', and use the gap 13 to fix the diffusion sheet 11' to the backlight module. on the housing, but this way the diffuser 11' is easy to slide and not easy to position, so it will increase the difficulty of assembling the backlight module
Method used
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[0014] Relevant present invention is to achieve the above-mentioned purpose, the technical means adopted and all the other effects, give preferred embodiment hereby, and cooperate drawing to illustrate as follows:
[0015] Please refer to FIG. 3 and FIG. 4 , the backlight module 20 of the present invention includes a casing 21 , at least one light source 22 and an optical material sheet 23 . The light source 22 is arranged in the housing 21 to provide a beam of light. The light source 22 is, for example, a cold-cathode fluorescent lamp or a light-emitting diode. The lamp tube, but not limited thereto; the optical material sheet 23 is disposed above the light source 22, such as a diffuser sheet or a prism sheet. The light beam provided by the light source 22 can provide a uniform surface light source to a display panel (not shown) after being diffused and collimated by the optical material sheet 23 .
[0016] The casing 21 is close to the opposite sides of a surface 211 of the...
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The invention discloses a backlight module, which comprises a shell body, a light source and an optical material sheet; wherein, the shell body has a raised part, and one side edge of the optical material sheet is horizontally extended to provide a raised ear; and the raised ear is provided with a positioning hole provided with an opening. When the optical material sheet is assembled on the shell body, the positioning raised part is inserted in the positioning hole, and at the same time, the positioning raised part restricted by the opening is kept in the positioning hole, thereby preventing the optical material sheet from sliding and moving.
Description
technical field [0001] The invention relates to a backlight module, in particular to a fixing structure for the backlight module. Background technique [0002] see figure 1 , the existing method for fixing the diffuser 11 in the backlight module is to set a circular hole 12 on the diffuser 11, and to set a columnar body (not shown) on the housing (not shown) of the backlight module, through the circular hole 12 Set on the columnar body to fix the diffuser 11 on the housing; however, the circular hole 12 on the diffuser 11 is formed by cutting the diffuser 11, and the cut circular waste is easy to scratch if it falls off directly The diffuser 11 causes the optical properties of the diffuser 11 to be poor; however, if the waste does not fall off directly, it is necessary to manually remove the waste from the diffuser 11, which consumes manpower and hours and reduces production efficiency. [0003] see figure 2 , there is another way to fix the diffusion sheet 11' in the ba...
Claims
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IPC IPC(8): G02F1/1335
Inventor 赵华圣陈艳
Owner CORETRONIC